SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zingg-ag.ch
SSL/TLS Certificate
SSL/TLS Certificate for zingg-ag.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zingg-ag.ch
- Valid from
- Jul 20, 2026
- Valid until
- Oct 18, 2026 (76 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0513CB9E3A4715FA2625F6DCFFA887707506
- SHA-256 fingerprint
- C6:DA:A1:76:7D:F1:2B:69:5E:16:BE:01:D0:BC:13:DB:7A:5F:E6:5A:01:A3:6C:ED:FF:B2:5C:3B:EB:FF:C0:46
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by zingg-ag.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch zingg-ag.ch continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.